Adjustable brake-head.



1. T. HANDIGES.-

ADJUSTABLE BRAKE HEAD. 'APPLIUATION' FILED 001.16. 1909.

4 Patented Jana 3 SMQ/wwe' To all whom 'it may'conccm:

UNirED s'rArEs PATEN-' rfv onirica.

oHIo, A CORPORATION orgoHIo.

Application led October 16, 1909. Serial No. 523,103

Be it known that I, PHILIP HANDIGns,

' a citizen of the United States, and resident of `Cleveland, in the county of Cuyahoga and State of Ohio, have invented vcertain new and 'useful Improvements in Adjustable Y Brake-Heads, speeication. l j. The present invention relates to adjustable brake heads vfor railway brakes, and has for its primary object toprovide a device of that of which the following is a character with means for removably mountj lng the brake head upon thebrake beam in such a manner as to positively hold the brake head against any rotary or axial displacewhenset I1n position, and which has means for permitting adjustment of the head `with respect to the peripheryv of the car wheel with which. it cooperates.

no lThe further purpose of the present inven-` tion is .to provide a brake head and mounting therefor ofthe characterY in question wherebyV the same are better enabled to 'withstand the excessive thrust or pressure to .which thebrake shoes are subjected while action; and which b reason of its structure is able towithstandI or resist such thrust in, proportion as it-isexerted.

yIn addition to the foregoing advantages the present invention embodies other points et novelty which `will be described in the following specification and set t'orth in the appended claims. v .i In the accompanying drawings which illustrate the invention by way of example, Figure 1 is a side elevation of the brake Fig. 2 is a transverse sectional view of the same and its mounting, Fig., 3 is a front lelevation, Fig. 4 is a-vertlcal'transverse section' of Fig. '2, looking from Vthe rear, and,

FigV 5. is a detail Wedge." 1

Referring now to the structure 1n further perspective view of the i detail, and with like characters of reference 'ent views shown, the numeral 1 desi indicating corresponding parts in the didra es the brake head-proper which is forme with an integral enlargement 2 when casted, and

-' 3 and l1 are the members for holding the E6 `The brake 'shoe 1 is mountedl upon a' sleeve@ brake shoe after the usual mannerz The en- ;larged portion 2 is provided with a rectangularchamber 5 from which is extended rearwardly ofthe brake shoe a tapering channel or key-way 6.

being assembled.

utilized vin the structure shown in my copending application bearing theA Serial Number 512,889, under date of August 14, 1909,

and 'of which structure the present application constitutes a further improvement.

The sleeve 7 has the usual openings 8 and 9 adapted to receive respectively the truss rod and compression member comprising the brake beam. Saidsleeve 7 is of perfect cylindrical design and has formed within its. outer periphery, and substantially intermediate/its ends, a pair of opposed grooves or key-Ways 10 which taper in depth `to .a common point 11, which point is to the rear and von the horizontal medial line of the sleeve. Theu point 11 is valso on the true circumference of the sleeve," as clearly shown in Fig. y-The idea of' having two key-ways 10 and disposing the same in opposed relation is .merely to afford a means for effecting-the reverse. position or interchangea'bility of the sleeve and brake head. The length of the key-ways 10 is such as'will permit the brake kheadto have a variable rotary adjustment.

For securing thevbrake head to its support- `ing sleeve there is provided a wedge block of preferably that design shown in Fig. 5. This menibercomprises a block 12 having formed integral therewith, and disposedin an arc, a wedge 13. In applied position the block 12 lits within the chamber 5 and the tapering wedge 13 lies within the adjacent key-way 10, and in this position thesecuring member is compressed or clamped by :emitir nnnmens, or GLEVELAND, o H'Io, l.f.\'.ssIefNo1=z..ro.v rm: Damascus Danke" nnen corrrANY, or CLEVELAND,

Patented-Jan'. 3,1911.

7 which sleeve is of substantially that type i means of the screw bolt 14 that is mounted on the portion 2 ofthe brake head and centrally of the chamber 5. The impinging end of thev bolt 14 fits within a recess 15 in the block 12. And for locking the bolt 14 there is a pin 16 which passes through the l boltand has its exposed ends lying between.

lugs 17, (see Fig. 4).

he dimensionsof the securing member are substantially those of the recesses 5 and 6 formed in ,the brake head whereby the block 12 and wedge 13 may'fit wholly therein in order that the brake head may fit over the end of the sleeve 'l'. when the parts are From the foregoing itwill be seen that by reason of having the tapering wedge 13 `it tendency for the brake head to ro-4 caus 4said wedge to'j am, and thus los ting within a key-way of like proportion Vthatany tatewi l ,required degree of pressure.

resist any thrust in that direction. And sincethe wedge portion lies within a key'- way in the sleeve 7,v it .will` withhold the brake head 1 4against any axial displace- 4 ment.

1ing Within the recess 5 there is/prevented any tendencyfor relative rotation between.-l sald block 12 and the brake head; and by" Wedge lock interposed between the brake head and'sleeve and constructed to eect its wedging actionl circumferentially of said head and sleeve. v

2Q A brake head for brake beams constructed with'an arcuate groove, a sleeveon which said brake head is mounted having an arcuate groove complementary to the rst named groove, and an arcuate wedge pin within said grooves and adapted to hold said brake head against axial or rotary displacement.

3. A brake head' for brake beams, constructed with `an arcuate tapering groove, a

sleeve onwhich said brake head is mounted having an arcuate tapering groove complementary to the first named groove and providing a hey-Way therewith, an arcuate tapering wedge pin Within said leyWay adapted to hold said brake head against axial or rotary displacement, and a means for adjusting the Wedge pin.

4. rlhe combination with a brake head mounted on a support having a key-Way, of a wedge pin seated within the key-,Way and adapted to hold the brake head against axial or rotary displacement, and a screw bolt mounted on the brake head and seating against the drift vpin and adapted to conipress the same. s

5. The combination with a brake head having a key-Way, of a sleeve on which said Abrake head is mounted having a key-Way co- 'head, and awed e operating with the key-way of the brakel pm seated within said keyways ,and a apted to .hold the brake headagainst axial or rotary displacement.

6. The combinatien with a brake head having a chamber and a keywav therein, of a support on' which 'the brake'head is mount ed having a key-way, ,and a block seated within the chamber having a wedge pin l ing within sadTke'y-ways and adapted to hol7 the brake head against axial or rotary displacement. L

7. The combination with a brake head having a chamber and a key-way of tapering depth therein; of a sleeve "on which the brake head is mounted having a key-way of tapering depth therein, and a block seated within the chamber and having a taperin wedge pin ly'in within vthe key-ways andv adapted to hold said brake head against axial or rotary displacement.

8. The combination with a brake headV having a key-way, of a sleeve on which said brake head is mounted havingopposedkey ways tapering to a common point, either one of said sleeve key-Ways adapted to coper- Vate with the key-Way of the brake head, and receive a' wedge pin; and a Wedge pin Within said cooperating key-ways adapted to hold said brake head against axial or rotary displacement.

9.`The combination with a brake head vhavino` a chamber and a key-way,'of a sleeve on which said brake head is mounted having a key-way formed Within the ends thereof, a block having a wedge pin adapted to lie ywholly within the chamber and key-Way of the brake head whereby to be passed over the end of the sleeve; said wedge pin adapted to hold the brake head against 'axial or rotary movement; and a screw bolt on the brake head adaptedtocompress the Wedge The foregoing. specification signed at Cleveland Ohio this 13th day of October,

PHILIP yT. HANDIGES. In presence of- A. D. MCADAM, G. W. Chmn-MONS. 

